code: def test_start_help():
      runner = CliRunner()
      res = runner.invoke(
          cli.start_server,
          ["--help"],
          catch_exceptions=False,
      )
      assert res.exit_code == 0
  
file_path: mlflow/tests/deployments/server/test_server_cli.py
imports: import subprocess
  import sys
  import time
  import pytest
  import requests
  from click.testing import CliRunner
  from mlflow.deployments import cli
  from tests.helper_functions import get_safe_port
label_desc: Use image node_id 1 for calling a global function with example usage: test_start_help() without return types